Numerous seeds and pits–which include apple–include cyanide, which isn’t the healthiest for anybody, bird or human. Cyanide will induce your pet nausea, vomiting, and will eventually place them in a very coma. Yes, you can feed bananas to toddler budgies. The younger types will thank you for this sweet snack https://storage.googleapis.com/hmds2007/What_Does_a_Budgie_Eat.html